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J.S.PORTER. GARBURETER. No. 563,799. Patented July 14. 1896.

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(No Model.) 2 Sheets-Sheet 2, J. S. PORTER.

CARBURETER.

No. 563,799 Patented July 14, 1896.

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UNITED STATES PATENT OFFICE.

JAMES S. PORTER, OF BUFFALO, NEWV YORK, ASSIGNOR, BY MESNE ASSIGN-MEXTS, OF FIVE-SIXTHS TO HIMSELF, PHILIP SPRINGXVEILER, AND PETER T.EINHELLIG, OF SAME PLACE.

CA R B U R ET E R SPECIFICATION forming part of Letters Patent No.563,799, dated July 14, 1896.

Application filed May 6,1895. Serial No. M8319. (No model.)

To all whom it may concern Be it known that I, JAMES S. Ponrnn, a citizen of the United States, residing at Buffalo, in the county of Erie andState of New York,

5 have invented a new and useful Improvement in Carburetors, of whichthe following is a specification.

This invention relates more particularly to that class of carburetors orgas-machines which consist of a casing divided into a number ofconnected chambers, conduits, or compartments containingpil or any othersuitable hydrocarbon and having absorbent diaphragms or partitionsthrough which the air or gas to be carbureted passes and whereby thesame is impregnated with the hydrocarbon.

My invention has for its objects to in crease the area of the absorbentsurfaces of the various compartments in a simple manner, to improve themeans for supporting the absorbent diaphragms in the compartments, andto provide the apparatus with a governor of simple construction forautomatically regulating the supply of gas to the burners connected withthe apparatus.

In the accompanying drawings, consisting of two sheets, Figure 1 is asectional eleva tion of my improved carburetor. Fig. 2 is a horizontalsection thereof on line 2 2, Fig. 1. Fig. 3 is a similar section on line3 3, Fig. 1. Fig. 4 is a sectional perspective view of a portion of thecasing, showing the absorbent lining of one of the compartments, one ofthe absorbent diaphragms, and the supporting wires thereof. Fig. 5 is atransverse section of one of the compartments on an enlarged scale.

Like letters of reference refer to like parts in the several figures.

A represents the casing of the carburetor, which is divided into anumber of superposed chambers or compartments B B B B B by horizontaldiaphragms G C 0 C the uppermost compartment forming a gas-collectingchamber, while the remaining compartments are carhureting-chambers. Eachof the latter is preferably provided with a volute partition D, closelyfitted to the top and bottom of the compartment and forming a spiralcon- 50 duit or passage.

The gas-collecting chamalso form passages through which the air or gaspasses from one compartment to the next.

These tubes are arranged alternately at the inner and outer ends of theconduits of the several compartments, so that the air or gas iscompelled to course through the entire length of each conduit beforeentering the conduit of the next compartment.

G is the oil supply or filling pipe connected with the gas-collectingchamber 13 and hav ing a funnel g and avalve g. The oil introducedthrough this filling-pipe enters the gascollecting chamber and flowsthrough the opening 6 in the bottom thereof into the conduit of theuppermost compartment B until it rises to the top of the pipe f of saidcompartment, when it overflows into the compartment next below, and soon through the remaining compartments, each of the three uppercompartments being filled to the top of its overflow-pipe. The level ofthe liquid in the lowermost compartment is observed by a glass gage 72,connected therewith.

I is the air or gas inlet pipe which communicates with the outer end ofthe lowermost compartment. This pipe is connected with a blast-fan orother suitable air-forcing device, whereby the air or gas is forcedthrough the space in the several compartments above the oilin awell-known manner, the air or gas passing through the several conduitsin a direction contrary to that in which the oil passes through the samein filling the apparatus. In filling the machine the air is per mittedto escape through a vent-cock j, and after filling the same the cock isclosed.

The conduit of each compartment has its top and side walls covered withan absorbent lining 7c of canvas, cotton, or other suitable material,which is submerged with its vertical portions in the oil of thecompartment. The top, as well as the side portions of the lining, thusbecome saturated by capillary attraction and the air or gas is broughtin contact with the oil on all sides, causing it to take up or absorb acorrespondingly greater quantity thereof, and producing a better andricher gas. This lining has the form of an inverted trough and is heldin place in the conduit by horizontal parallel wires or bands 70,arranged in the upper corners of the lining and bent spirally toconform. to the conduit. These wires are secured to the interior of theconduit, preferably by soldering, the lining being for this purposeslitted or cut away at intervals, as shown at k in Fig. 4, to permit thewires to come in contact with the metallic Walls of the conduit.

L represents absorbent partitions or cur tains arranged at intervals inthe conduits of the several compartments and extending across the air orgas space above the oil in the conduit. The lower portions of thesecurtains are submerged in the oil and their upper portions, which standin the path of the air or gas, become saturated by capillary attraction,whereby the air or gas absorbs a port-ion of the oil in passing throughthe curtains. Each of these curtains consists of an inverted-U- shapedframe Z, preferably of wire, which is covered with a suitable absorbentmaterial, such as cotton. The curtain is preferably provided in itsupper and side edges with a hem or pocket, as shown, in which the wireframe is confined, and the legs or side members of the frame extendbelow the curtain and are secured to the bottom of the compartmen t bysolderin g or by other suitable means. The retaining-wires of theconduit-lining k pass through the upper corners of the curtains L, onthe inner side of their frames, as shown in Figs. at and 5, therebyaiding in holding the curtains in place. are preferably arrangedobliquely in the conduits and at an acute angle to the innerwall of theconduit, so as to direct the air or gas inwardly or toward the center ofthe machine and counteract the tendency of the same to pass along theouter wall of the conduit under the influence of centrifugal force. Bythis arrangement the entire surface of the curtains is effectuallyutilized.

M is the gas-outlet pipe through which the carbureted air or gas isdischarged from the gas-collecting chamber B. The escape of the gas fromthis outlet-pipe is preferably controlled by a governor or automaticregulator constructed as follows:

N is a closed tank or vessel, which may be mounted on the main case ofthe carbureter and which is partly filled with a non-freezing liquid,such as glycerin. This tank is provided in its bottom with acomparatively large opening '12-, which is surrounded by an uprighttube-n, extending above the surface of the liquid in the tank.

0 isan inverted cylindrical vessel or cup surrounding the tube n anddipping with its open lower end below the surface of the liquid in thetank, so: as to form a gas-seal. The

n, and the upper portion of the cup 0, form a gas-chamber with which theouter or upper The curtains end of the gas-pipe lVL communicates. Thispipe is provided with a regulating-valve m. the arm m of which isconnected with the cup 0 by a stem q depending from the top or the cupand having a transverse pin which engages in a longitudinal slot of thevalvearm, as shown in Fig. 1.

ris a gas-supply pipe which leads from the gas-chamber of the regulatorto the place of consumption.

When the gas-pressure rises, owing to a reduced consumption of gas, thecup 0 is raised, thereby partly closing the valve of the gas-pipe M. anddiminishing the supply of gas to the burner accordingly; while when thegas-pressure is reduced by an increased consumption the cup descends bygravity and farther opens said valve, whereby the supply to the burneris increased. The gas supply is thus. automatically regulated in accordance with the consumption.

.5 is an auxiliary air-pipe, whereby a quantity of air may be mixed withthe carbureted gas in case the same is richer than desired. This pipeleads from the main air-pipe I to the gas chamber of the regulator andis provided with a valve 8 for regulating the passage of air through thesame. The arm a of this valve is connected with the stem of the cup 0 inthe same manner as the arm of the valve am, so that both valves areoperated simultaneously as the gas-pressure rises and falls, therebyadmitting the same relative proportion of gas and air to the gas chamberof the regulator at. all times, irrespective of the fluctuations of thegas-pressure.

The gas-outlet pipe M and auxiliary airpipe 3 are provided withhand-valves m and for varying the proportion of gas and air admitted tothe gas-chamber of the regulator, as may be desired.

When the quality of the gas is such as to require no final admixture ofair, the handvalve of the air-pipe s is closed.

It is obvious that the conduits of the carbureting compartments may notnecessarily be spiral in form, but may be constructed in any othersuitable form which provides a continuous passage for the air or gas tobe carbureted.

I claim as my invention- 1. The combination with a conduit or passagefor a carbureter adapted to contain a hydrocarbon, of an absorbentlining applied to the top and sides of said conduit, a transversepartition arranged in said conduit and consisting of aninverted-U-shaped frame secured at its lower ends to the conduit and acovering of absorbent material applied to ranged in the upper corners ofthe conduit and passing through the upper portion of I said partition,substantially as set forth. chamber or space p below the tank, the tube2. The combination with a carbureter, of

a gas-regulator consisting of a tank adapted to contain a liquid andhaving a gas-tube extending above the liquid therein, an inverted cuparranged in said tank around said tube, having its open lower endimmersed in the liquid of the tank, and forming with the tube 5 2tgas-chamber, a gas-outlet pipe leading from the carbureter to saidgas-chamber, an air-pipe connected with said gas-chamber,regulating-Valves arranged in said gas and air pipes and havingactuating-arms both 0 connected with the inverted cup of said regulatorwhereby said valves are operated simultaneously, and a burnersupply pipeconnected with the gas-chamber of the regulator, substantially as setforth.

W'itness my hand this 27th day of April, 15

JAMES S. PORTER. Vitnesses:

JNo. J. BONNER, O. A. MANN.

